It is a matter of personal preference, or advice of a interior designer, there is no "true standard" as it also depends on the shape of the tray ceiling as well.
You can put all the ingredients in the utility tray . whaha :) (y)
Dozen = 12 You can put 12 eggs in a dozen egg tray.
A service tray hold the plates of food; a tray stand holds the service tray.
The thorny crown was put on Jesus, as he claimed to be the king of the Jews, and it was not fulfilled with a golden crown. Mockingly they put this crown of thorns on Jesus.
Raising the ceiling has transformed the room into into a pleasant habitale space
weight of tray put downward force while the surface tention of water apply up ward force
Put your coins, garage remotes, keys, tissues, anything. It's a tray. Remove it and put a radio there or something...
put sugar on a ice tray and put it in the freezer
Put them in the opposite direction of the ceiling joists
The wire tray allows cooling from all sides, including from underneath.
Buy a new tray take the old one out put the new one in
To put whatever substance you are dissecting on it.