You can restore content, settings, and apps from a backup to a new or newly erased iPad.
Important: To restore your iPad, you must have a backup to restore from. See Using USB, connect a new or newly erased iPad to the computer containing your backup.
Do one of the following:
On a Mac (macOS 10.15 or later): In the Finder sidebar, select your iPad, click Trust, then click “Restore from this backup.”
On a Mac (macOS 10.14 or earlier) or a Windows device: Open the iTunes app, click the button resembling an iPad near the top left of the iTunes window, click Summary, then click Restore Backup.
Note: Use the latest version of iTunes. See the Apple Support article If you can’t update or restore your iPhone, iPad, or iPod touch.