How to Remove Faceplates Caulked into Tile Backsplash

I have an electrical socket in the kitchen that stopped working, but whoever installed the tile backsplash seems to have used caulk and caulked the faceplates recessed into the tile backsplash rather than using spacers and having the faceplates lay on top of the tile. On top of that, some of the white faceplates have yellowed. The house is about 12 years old.

Any advice for how to remove these and install them correctly?

I was thinking of trying to score the caulk around the faceplates with a utility knife to break the faceplates loose and then remove them. Then after removing the faceplates, remove the electrical outlet or switches, scrape off the rest of the caulk with a putty knife, and then install new electrical sockets and switches using spacers, and buy jumbo size faceplates to install laying on top of the tile while covering the oversized openings in the tile.

I think there are 8 total of these faceplates caulked into the backsplash, so I’m hoping this doesn’t become a nightmare project.