Using the expanded dynamic model of a liquid flow-through porous electrode (PE), we studied the effect of the parameters of the polarization curve and the potentiostatic mode of electrolysis on the dynamics and final parameters of the codeposition of two metals (M-1 and M-2). The direct-flow and circulation operation modes of the equipotential PE are considered at the high solution flow rate and in the absence of the anodic dissolution of the electronegative component M-2. It has been shown that the time-constancy of the rates of M-1 and M-2 deposition averaged over the PE thickness is characteristic of the direct-flow mode. However, this does not mean that the local rates of metal deposition are constant. A general trend is a decrease in the rate of metal deposition with time in the rare part of the PE and its increase in the front region, which is closest to the anode. The transition to the circulation mode and small solution volumes leads, along with the expected consequences (a decrease in the rate of metal deposition with time and an increase in the time within which the porous matrix is filled with the deposit), to a more uniform distribution of the electropositive component M-1 and a sharp broadening of the region of deposition of the electronegative component M-2. The experimental data on the dynamics of the codeposition of Ag and Cu from dilute thiosulfate solutions are in good agreement with modeling results. (C) 2011 Elsevier B.V. All rights reserved.