In a surface grinding operation performed on hardened plain carbon steel, the grinding wheel has a diameter of 250 mm and width of 25 mm. The wheel rotates at 2800 rpm, with a depth of cut (infeed) of 0.05 mm/pass and a crossfeed of 4.0 mm. The reciprocating speed of the work is 6 m/min, and the operation is performed dry. Determine the volume rate of metal removed in mm3/min to one decimal place.