can i trade in an 4th gen apple ipad

LotusPilot makes some great points.

The iPad 4th gen is a 7-1/2-year old iPad.

If it is damaged, there will be no trade-in value for it and will be too costly to repair, given its age.

Just forget this iPad, now, and give it to an Apple Store to recycle it!

Lots of local and online retailers have the 2019, 7th gen, 10.2 inch screen iPad for between $70-100 less than Apple’s own asking price.

Amazon, itself, currently sells new, sealed in box, Apple's 2019, 7th gen, 10.2 inch screen, WiFi ONLY, 128 GBs storage iPad models selling for $329, through its own direct sales distribution.

https://www.amazon.com/gp/product/B07XQYPM2N?pf_rd_p=ab873d20-a0ca-439b-ac45-cd78f07a84d8&pf_rd_r=6HW54HFD0YSC2ZE3CP7Z

That is $100 OFF Apple’s own retail price!

The 2019, 10.2 inch screen, 7th gen iPads have a 1/2 inch larger screen, have much faster processors, AT LEAST, 3 times the internal RAM, iPadOS 13 support, with much better much multitasking features, Apple Pencil and Apple Smart keyboard cover support and have better audio speakers and better built-in cameras.

A lot has happened with iPad and iOS in 7-9 years and in the past 2 to 3-1/2 years since iOS 9 and 10.

Good Luck to You!

If your iPad4 is damaged and in need of repair, then it will have limited (if any) trade-in value.

This Apple help page will help you to understand the current repairability of your device - according to its age (i.e., current product, vintage product or obsolete product):

https://support.apple.com/en-gb/HT201624

iPad4 was launched in 2012; software support was dropped in 2017. As such, any repair is likely to be uneconomic - and the cost would certainly exceed any trade-in value.

If your iPad is damaged, you might be best advised to cut-your-losses and consider replacement with a newer model.

I hope this information is helpful in informing your options.