Alternatively have your packs of cutlery in a separate non chilled container. You add one pack of cutlery to each tray before you dish it out. Less work for the kitchens than having to neatly place one set of cutlery on each tray.
And where are you going to store that in the catering truck sent to the plane? And ensure it gets onto the plane with the trolleys. I understand your point, but just can't see the logistics working.