You will be entitled to whatever AB allows for class of travel in which you are booekd

AB seems to allow 0,1 or 2 pieces in economy depending on the fare

if you hold silver status, then if that allowance is less than 2 pieces of 23Kg, then you will be entitled to 2 pieces of 23Kg
If you hold Emerald status , then you are entitled to 1 piece more than ticketed