After I had a look at the man page for plutil I started my own test.
plutil -p ~/Library/SyncedPreferences/com.apple.Safari.plistThis will display the informatio in a JSON looking format.
plutil -convert xml1 -o /tmp/iCloudTabs2.xml ~/Library/SyncedPreferences/com.apple.Safari.plist
The output contains the device, URL, page title and more. If I find some information on the iPad and want to save, I keep the tap open. The next time at the Mac the URL to download this with curl or wget is already there.