Abstract: A storage tray system includes a plurality of storage trays each of which has a receptacle bounded by vertical walls, each having an inner surface, and a lip extending along at least one of the walls of the receptacle and projecting upwardly to be engaged within a horizontal slot between two mounting plate portions of a mounting plate such that the lip is juxtaposed with one mounting plate portion, above the slot and behind the one mounting plate portion, and a wall of the receptacle abuts the other mounting plate portion, below the slot and in front of the other mounting plate portion, with the inner surface of the abutting wall essentially flush with the corresponding outer surface of the one mounting plate portion for unrestricted access to the receptacle and for an integrated, aesthetically pleasing appearance.