Is there a way to copy a form from one JotForm account to another?

Did you mean cloning a form? You can follow this guide on how to clone forms.

How-to-Clone-an-Existing-Form-from-a-URL

But if you want to move one form to another account, only we can do that. Just give us the target username where the form would be transferred and the FormID/name of the form.

Note: Only the form owner can request to move a form to another account.

Please let us know if we can be of further assistance.