Surface area question

[carts69]

Please can anyone advise on the correct amps for nickel plating a zincated strip of aluminium size: 38cm long, 4cm wide, 3mm thick. Never found it easy to work our surface areas so any advice would be great as the piece is awaiting a bright nickel finish!
Thanks in advance.....

[stealthbob]

38x4x2=304 cm2/119.7 Square Inch/10 Square feet

The edges of 3mm are typically negligible but in this case add 25.2 cm2/9.8 Square inch/.82 Square feet

Totals 329 cm2 /129.5 Square Inch/10.79 Square feet

[lcaswell]

I don't believe that calc is correct. You have the sq cm correct, but your conversion to sq inches is wrong.

Convert to inches, then use this tool - Caswell Inc - Calculating Surface Areas

Makes life a lot easier.

38cm = 15 inches
4cm = 1.5 inches
3mm = .12 inches

So, 15 x 1.5 x 2 = 45 sq in

plus

1.5 x .12 x 2 = 0.36 sq in

plus

15 x .12 x 2 = 3.6 sq in

Total = 48.96 sq inches

Nickel needs .07 amps/sq in, so use approx 3.4 amps

[stealthbob]

OMG..sorry.

Yeash it sucks when your kids take over your account and post eh

Brain fart...I was not paying attention when I did that.

Thanks for stepping in to make sure it was right....

[carts69]

Thanks for both your input, looks like 3.4 amps is the way forward, cheers again!