Q: My ipad 2 disconnects while trying to update and cant complete syncing / copying of apps.

Howdy frakie,

If you are having an issue with your iPad restarting itself, I would suggest that you troubleshoot using the steps in this article - 

If your iOS device restarts, displays the Apple logo, or powers off while you're using it - Apple Support

In particular, since you are already using the latest version of the operating system -

If you still see this issue after updating, contact Apple Support.

Thanks for using Apple Support Communities.

Best,

Brett L