Definition of trays:
(n) :
A small, typically rectangular or round, flat, and rigid object upon which things are carried.
(n) :
(by extension) The items on a full tray.
(n) :
A component of a device into which an item is placed for use in the device's operations.
(n) :
(computing, graphical user interface, informal) A notification area used for icons and alerts.
(n) :
(computing, business) A type of retail or wholesale packaging for CPUs where the processors are sold in bulk and/or with minimal packaging.
(n) :
(Australia) The platform of a truck that supports the load to be hauled.