A tray is a flat, rectangular object with low sides that is used to hold or carry things, like food or drinks, while keeping them organized and easy to transport. Full definition
Form into small balls, flatten and place on baking trays with enough room for spreading 5. (thedivinefamilytree.com)
It starts with frozen coffee ice cubes, so now they keep an ice cube tray of coffee in the freezer just in case a craving hits. (bluejeansandcottontees.com)