A tray is provided for dispensing and wetting pre-pasted wallpaper. The tray features a trough and a dispenser rod for holding a roll of wallpaper. The wallpaper can be extended to a desired length and cut directly from the dispenser rod. The cut wallpaper is then placed on a shelf adjacent to a trough containing a wetting agent. The wallpaper is passed under the shelf and through the trough being guided by a guide submersed in the trough to ensure proper wetting. The paper is then withdrawn from the trough and hung on the desired surface.