The ornamental design for a laddercaddytray, as shown and described.
FIG. 1 is a front view of the ladder caddy tray design.
FIG. 2 is a rear view of the ladder caddy tray design.
FIG. 3 is a bottom view of the ladder caddy tray design with the front of the ladder caddy at the top of the drawing.
FIG. 4 is a top view of the ladder caddy tray design with the front of the ladder caddy at the bottom of the drawing.
FIG. 5 is a left side view of the ladder caddy tray design.
FIG. 6 is a right side view of the ladder caddy tray design; and,
FIG. 7 is a perspective view of the ladder caddy tray design from a right side and front perspective. The broken line showing of the ladder supporting the caddy tray is for illustrative purposes only and forms no part of the claimed design.