How much is a 2012 iPad worth 32gb

You can verify eligibility for trade-in and obtain an estimate of the potential trade-in value (if any) here:

Apple Trade In - Apple

Many choose to trade-in an iPad at physical Apple Store in preference to using the online option - as the device condition can be checked and the trade-in value finalised while in-store. Any value can be used in-store against purchase of a new device, or the value returned to you as a Gift Card that can be used against future device or services purchase.

Be aware that Apple’s in-store trade-in values may differ from the on-line estimate.

Before parting with your iPad - whether trading-in, selling privately, or simply disposing of an unwanted device - ensure that the device is properly prepared:

What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support

I don't know which specific iPad you have, but a quick scan through MacTracker indicates that

• All of the iPads released or sold in 2012 have 32-bit processors. Apple switched to 64-bit processors in 2013.
• None of the iPads in question can update past iOS 10 – if that.

I'm pretty sure that Apple won't offer you anything for it – except the opportunity to recycle it for free. If you still have a use for it (games?), you could keep using it, but I wouldn't count on being able to (re-)download any apps from the App Store.

It’s not likely worth anything (being 12 years old and not supported by current iPadOS). You could always check the link below to find out for sure.

Apple Trade In - Apple

You’re welcome