A tray-handling station for manually loading or unloading piece goods on or from a tray, wherein the tray-handling station is couplable to a packing station, or a piece-good conveyor system, comprising: a tray-conveyor system comprising a handling position for buffering at least one tray, which is to be handled; a working area including at least partially the packing station, or the piece-good conveyor system, and the handling position; and an ergonomically shaped and arranged sliding-surface unit defining a handling plane together with the to-be-handled tray (14-1, 14-2), particularly together with an upper edge thereof, the handling plane being arranged adjacent to the tray-conveyor system and adjacent to the packing station, or the piece-good conveyor system; wherein the working area is dimensioned such that an order-picking person moves, during removal of one of the piece goods from the to-be-handled tray (14-1, 14-2) located at the handling position which serves as removal position, the to-be-removed piece good from the to-be-handled tray (14-1, 14-2) via a sliding surface of the sliding surface unit, which is located in the handling plane, to a discharging area, which is located within the working area and which, at least partially, overlaps the packing station or the piece-good-conveyor system, only by moving his/her upper body without lifting; and wherein preferably a tilting device is provided, which tilts the to-be-handled tray (14-1, 14-2), or the to-be-removed piece good, relative to a substantially horizontally orientated main-conveying plane such that the order-picking person can push and/or pull the to-be-removed piece good over the sliding surface of the sliding-surface unit in a substantially stepless manner from the to-be-handled tray (14-1,14-2) into the discharging area. a tray-conveyor system comprising a handling position for buffering at least one tray, which is to be handled; a working area including at least partially the packing station, or the piece-good conveyor system, and the handling position; and an ergonomically shaped and arranged sliding-surface unit defining a handling plane together with the to-be-handled tray (14-1, 14-2), particularly together with an upper edge thereof, the handling plane being arranged adjacent to the tray-conveyor system and adjacent to the packing station, or the piece-good conveyor system; wherein the working area is dimensioned such that an order-picking person moves, during removal of one of the piece goods from the to-be-handled tray (14-1, 14-2) located at the handling position which serves as removal position, the to-be-removed piece good from the to-be-handled tray (14-1, 14-2) via a sliding surface of the sliding surface unit, which is located in the handling plane, to a discharging area, which is located within the working area and which, at least partially, overlaps the packing station or the piece-good-conveyor system, only by moving his/her upper body without lifting; and wherein preferably a tilting device is provided, which tilts the to-be-handled tray (14-1, 14-2), or the to-be-removed piece good, relative to a substantially horizontally orientated main-conveying plane such that the order-picking person can push and/or pull the to-be-removed piece good over the sliding surface of the sliding-surface unit in a substantially stepless manner from the to-be-handled tray (14-1,14-2) into the discharging area.