I've installed a small RV power kit gizmo right above the kitchen table. It has a voltmeter, dedicated 2amp and 1amp USB, and 12V socket. I installed the push-button separately as I didn't need/want the voltage display on 24/7.
The ports aim straight down to the table, so any charging devices have their cords neatly against the wall. They drop about 20cm to the table. The port is out of the way of the table when it folds against the wall.
