GFCI is the first place to look (assuming that the breakers for the outlets are on)--it may be a good idea to put a cover over the breakers, since it is easy to have a foot trip the breakers.
All of the outlets are on one GFCI circuit--just reset it--it should be in the galley outlet, in back of the throttle.
If that doesn't do it, then start checking with a volt meter. The breakers are all on a bus, and they should not become disconnected from the bus. The other option is a bad breaker. This can happen.
We also put a second 110 V outlet circuit in both boats--on the aft cabinet for a microwave or convection oven. On the CD 25 we split the socket--half for an inverter. On the TC we wired an inverter (both 1500 watts) into the output from the extra breaker and it has an auto transfer switch.
The second 110 Volt switch we added is for a second battery charger for the inverter/house bank--30 to 40 amps.