Copy Website to Flash Drive

A website and a web address are two different things. Which one are you actually trying to save?

Are you truly asking how to download an entire website? Unless the website is yours, that's not really possible. You can print a page to a PDF using the regular printer menu item then selecting "Safe as PDF".

If you're trying to save a web address (i.e. URL), you can copy and paste it into a document (Pages, Word, etc) that you can safe to your flash drive.

The more information you give about what you're trying to accomplish, the better the instructions you'll get.

AFAIK if you go to the bottom arrow on safari and select copy then good luck to finder find the usb and issue it’s the only way