Silver plating solution on copper plate surface

Firstly, the copper plate was sensitized in sensitized solution in 30g/lsncl2 2h2o hydrochloric acid solution for 65438 00 minutes, then activated in hydrochloric acid solution containing PdCl20.5g/L for 65438 00 minutes, then washed with distilled water, transferred to a reaction container for filtration, and then mixed with reducing solution [from 45g/L glucose (C6h12O3]. 100mL/L anhydrous ethanol (C2H5OH)], add main salt solution [58g/LAgNO3, 42g/LNaOH, proper amount of NH3 H2O] while stirring, take it out after electroless plating at room temperature for 30 minutes, and wash it with distilled water.