I dont think they have a cargo area, you may be able to leave it on the car deck if you ask them but calling be best
I would call the ferry service and ask.
Calling the ferry service would be your best bet before you do anything. That way your better prepared.
I am sure the ferry staff will help find a good place to put your table until you get off the ferry
I believe you can leave it on the car deck but you may have to check with the boat crew
Thanks! Your answer is awaiting moderation.