FIG. 1 is a top perspective view of a tray for railing attachment device showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevation thereof, the side opposite being a mirror image;
FIG. 4 is a right side elevation thereof, the side opposite being a mirror image; and,
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken line showing of environment is for illustrative purposes only and forms no part of the claimed design.