1. Convert the dimensions of the sheet to inches:
   • Chiều dài: 4 chân = 48 inch
   • Chiều rộng: 8 chân = 96 inch
2. Convert the thickness to decimal form:
   • 3/16 inch = 0.1875 inch
3. Calculate the area of the sheet in square inches:
   • Area = Length x Width = 48 inches x 96 inches = 4,608 square inches
4. Calculate the volume of the sheet in cubic inches:
   • Volume = Area x Thickness = 4,608 square inches x 0.1875 inches = 864 cubic inches
5. Convert the volume from cubic inches to cubic feet:
   • Âm lượng (cubic feet) = Volume (cubic inches) / 1728 = 864 cubic inches / 1728 = 0.5 cubic feet
6. Determine the density of aluminum. The density of aluminum is typically around 0.098 pound trên inch khối.
7. Multiply the volume in cubic feet by the density to calculate the weight in pounds:
   • Cân nặng (lbs) = Volume (cubic feet) x Density = 0.5 cubic feet x 0.098 lbs/in³ ≈ 0.049 lbs

Vì thế, số 4×8 3/16 tấm nhôm would weigh approximately 0.049 bảng.