Reno:
Over the years I have seen (and installed) 'Plugmold' in a few jobs.
Mounted to the sheetrock, on the backsplash, at the bottom edge of the upper cabinets, before the finish (tile,etc.) backsplash installed. Almost flush. HO was happy, inspector said nothing, it was on GFI CBs.
Way back in time, Wiremold made components that you could build within the 1-1/2" raceway, receptacles, "Lumiline" lights, and switches; then cut the cover plate to fill in the spaces. I do not know if it is still around. No inspector had any issues with that either.
