Is there an option to have a copy of a submitted JotForm emailed to the survey responder in their confirmation email?

By default, an Autoresponder Email template is created as soon as you add an email field to the form. It is intended to be sent to the user who will submit the form and gets sent to the email address they added into the Email field.

Now, if you have added multiple email fields in the form, it usually sends the email to the first email field in the form. So if you want to specify which email field to get the email address from, please refer to this guide on setting-up-an-autoresponder-email.